<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图区域 -->
        <el-card>
            <!-- 行 -->
            <el-row :gutter="20">
                <!-- 列 -->
                <el-col :span="11">
                    <!-- 搜索与添加区域 -->
                    <el-input @clear="getUserList" clearable placeholder="请输入内容" v-model="queryInfo.query" class="input-with-select">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 表格区域 -->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index" label="#"></el-table-column>
                <el-table-column prop="username" label="姓名"></el-table-column>
                <el-table-column prop="email" label="邮箱"></el-table-column>
                <el-table-column prop="mobile" label="电话"> </el-table-column>
                <el-table-column prop="role_name" label="角色"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <!-- 整行的数据 -->
                        <!-- {{scope.row}} -->
                        <el-switch v-model="scope.row.mg_state" active-color="#13ce66" @change="userStateChanged(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button @click="showEditDialog(scope.row.id)" type="primary" icon="el-icon-edit" size="mini"></el-button>
                        <!-- 删除按钮 -->
                        <el-button @click="removeUserById(scope.row.id)" type="danger" icon="el-icon-delete" size="mini"></el-button>
                        <!-- 分配角色按钮 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 3, 4]" :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>
        </el-card>

        <!-- 添加用户的对话框 -->
        <el-dialog @close="addDialogClose" title="添加用户" :visible.sync="addDialogVisible" width="50%">
            <el-form :model="addForm" status-icon :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="电话" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>

        <!-- 修改用户信息的对话框 -->
        <el-dialog @close="editDialogClosed" title="修改用户" :visible.sync="editDialogVisible" width="50%">
            <el-form :model="editForm" status-icon :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="电话" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUser">确 定</el-button>
            </span>
        </el-dialog>

        <!-- 分配角色的对话框 -->
        <el-dialog title="分配角色" :visible.sync="setRightDialogVisible" width="30%" @close="setRoleDialogClosed">
          <div>
			  <p>当前的用户: {{userInfo.username}}</p>
			  <p>当前的角色: {{userInfo.role_name}}</p>
			  <p>
				 分配新角色:
				 <el-select v-model="selectedRoleId" placeholder="请选择">
				     <el-option
				       v-for="item in rolesList"
				       :key="item.id"
				       :label="item.roleName"
				       :value="item.id">
				     </el-option>
				   </el-select>
			  </p>
		  </div>
          <span slot="footer" class="dialog-footer">
            <el-button @click="setRightDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
          </span>
        </el-dialog>
    </div>
</template>

<script>
    export default {
        data() {
            //校验电话的规则
            var checkMobile = (rule, value, cb) => {
                const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
                if(regMobile.test(value)){
                    return cb()
                }
                cb(new Error('请输入合法的手机号'))
            }

            return {
                //获取用户列表的参数对象
                queryInfo: {
                    //关键字
                    query: '',
                    //页码
                    pagenum: 1,
                    //每页显示条数
                    pagesize: 4
                },
                userlist: [],
                //数据总数
                total: 0,

                //对话框的显示与隐藏
                addDialogVisible: false,
                //添加用户的表单数据
                addForm: {
                    username: '',
                    password: '',
                    email: '',
                    mobile: ''
                },
                //添加表单的验证规则对象
                addFormRules: {
                    username: [
                        { required: true, message: '请输入登录名称', trigger: 'blur' },
                        { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                    ],
                    password: [
                        { required: true, message: '请输入密码', trigger: 'change' },
                        { min: 6, max: 15, message: '长度在6到15个字符', trigger: 'blur' }
                    ],
                    email: [
                        { required: true, message: '请输入邮箱地址', trigger: 'blur' },
                        { type: 'email', message: '请输入正确的邮箱地址', trigger: ['blur', 'change'] }
                    ],
                    mobile: [
                        { required: true, message: '请输入电话', trigger: 'blur' },
                        { validator: checkMobile, trigger: 'blur' }
                    ]
                },
                
                //控制修改用户对话框的显示与隐藏
                editDialogVisible: false,
                //查询用户信息对象
                editForm: {},
                //修改表单的验证规则对象
                editFormRules: {
                    email: [
                        { required: true, message: '请输入邮箱地址', trigger: 'blur' },
                        { type: 'email', message: '请输入正确的邮箱地址', trigger: ['blur', 'change'] }
                    ],
                    mobile: [
                        { required: true, message: '请输入电话', trigger: 'blur' },
                        { validator: checkMobile, trigger: 'blur' }
                    ]
                },
                
				//分配角色对话框的显示与隐藏
				setRightDialogVisible: false,
				//需要被分配角色的用户信息
				userInfo: {},
				//角色数据列表
				rolesList: [],
				//已选中的角色id值
				selectedRoleId: ''
            }
        },
        created() {
            this.getUserList()
        },
        methods: {
            //表单数据存储
            async getUserList() {
                const {data: res} = await this.$http.get('users', {
                    params: this.queryInfo
                })
                if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
                //获取数据库数据列表
                this.userlist = res.data.users
                this.total = res.data.total
                console.log(res);
            },
            //监听pagesize改变的事件
            handleSizeChange(newSize) {
                console.log(newSize);
                //每页显示数据条数改变
                this.queryInfo.pagesize = newSize
                //重新获取列表信息
                this.getUserList()
            },
            //监听页码改变的事件
            handleCurrentChange(newPage) {
                console.log(newPage);
                //页码发生改变
                this.queryInfo.pagenum = newPage
                //重新获取列表信息
                this.getUserList()
            },
            
            //添加按钮数据储存
            async userStateChanged(userInfo) {
                console.log(userInfo);
                const {data: res} = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
                if (res.meta.status !== 200) {
                    userInfo.mg_state = !userInfo.mg_state
                    return this.$message.error('更新用户状态失败！')
                }
                this.$message.success('更新用户状态成功！')
            },
            //监听添加框的关闭事件表单清空
            addDialogClose() {
                //关闭对话框再次打开后表单清空
                this.$refs.addFormRef.resetFields()
            },
            //点击确定添加新用户
            addUser() {
                //预验证
                this.$refs.addFormRef.validate(async valid => {
                    console.log(valid);
                    //添加失败返回
                    if(!valid) return
                    //添加成功
                    const {data: res} = await this.$http.post('users', this.addForm)
                    
                    if (res.meta.status !== 201) return this.$message.error('更新用户状态失败！')
                    this.$message.success('更新用户状态成功！')
                    //添加后隐藏对话框
                    this.addDialogVisible = false
                    //更新用户列表
                    this.getUserList()
                })
            },
            
            //修改按钮数据储存
            async showEditDialog(id) {
                console.log(id);
                const {data: res} = await this.$http.get('users/' + id)
                if (res.meta.status !== 200) return this.$message.error('获取用户信息失败！')
                //获取信息
                this.editForm = res.data
                this.editDialogVisible = true
            },
            //监听修改框的关闭事件表单清空
            editDialogClosed() {
                //关闭对话框再次打开后表单清空
                this.$refs.editFormRef.resetFields()
            },
            //点击确定修改用户信息
            editUser() {
                //预验证
                this.$refs.editFormRef.validate(async valid => {
                    console.log(valid);
                    //添加失败返回
                    if(!valid) return
                    //添加成功
                    const {data: res} = await this.$http.put('users/' + this.editForm.id, {
                        email: this.editForm.email, 
                        mobile: this.editForm.mobile
                    })
                    
                    if (res.meta.status !== 200) return this.$message.error('修改用户信息失败！')
                    this.$message.success('修改用户信息成功！')
                    //添加后隐藏对话框
                    this.editDialogVisible = false
                    //更新用户列表
                    this.getUserList()
                })
            },
            
            //根据id删除对应用户信息
            async removeUserById(id) {
                console.log(id);
                const confirmResult = await this.$confirm('此操作将永久删除该用户信息, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).catch(err => err)

                //如果用户确认删除，则返回值为字符串 confirm
                //如果用户取消了删除，则返回值为字符串 cancel
                console.log(confirmResult);
                if(confirmResult !== 'confirm') {
                    return this.$message.info('已取消了删除')
                }

                const {data: res} = await this.$http.delete('users/' + id)
                if (res.meta.status !== 200) return this.$message.error('删除用户信息失败！')
                this.$message.success('删除用户信息成功！')
                this.getUserList()
            },

            //分配角色对话框的显示与隐藏
			async setRole(userInfo) {
				this.userInfo = userInfo
				
				//在展示对话框之前获取所有角色列表
				const {data: res} = await this.$http.get('roles')
				if (res.meta.status !== 200) return this.$message.error('获取角色列表失败！')
				//获取信息
				this.rolesList = res.data
				
				this.setRightDialogVisible = true
			},
			//点击确定按钮分配角色
			async saveRoleInfo() {
				//判断是否有选择角色
				if(!this.selectedRoleId) {
					return this.$message.error('请选择要分配的角色')
				}
				
				const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`, {rid: this.selectedRoleId})
				console.log(res)
				
				if (res.meta.status !== 200) return this.$message.error('更新角色失败！')
				this.$message.success('更新角色成功成功！')
				this.getUserList()
				this.setRightDialogVisible = false
			},
			//监听分配权限框的关闭清空事件
			setRoleDialogClosed() {
				this.selectedRoleId = ''
				this.userInfo = ''
			}
		}
    }
</script>

<style lang="less" scoped>

</style>
